Malleable Cast Iron Female-Female Sleeve with Black Heart

Malleable Cast Iron Female-Female Sleeve with Black Heart

The Female-Female sleeve made of malleable cast iron with a black core is an essential fitting for joining and extending pipes. Designed to connect two male ends of the same diameter, this sleeve helps ensure perfect continuity and a seamless seal within your network. It is the solution of choice for professionals looking for a reliable and robust part to extend a plumbing line or connect two components with external threads. Its malleable cast iron construction guarantees mechanical resistance that ensures the safety and durability of the installation under various stresses.

An Ally for All Fluid Systems

This Female/Female sleeve is distinguished by its great versatility. It is widely used for the distribution of water, gas, steam , and for the transportation of any non-corrosive liquid or gas. This adaptability makes it indispensable in a variety of industrial and commercial sectors, including HVAC (Heating, Ventilation, and Air Conditioning) systems, where a secure junction is crucial. Beyond technical applications, malleable cast iron with a black core is highly valued in the creation of industrial furniture. This sleeve is often integrated into the design of shelves, lighting fixtures or supports in loft and vintage style, where its raw appearance and solidity give a highly sought-after aesthetic signature.

Material and Manufacturing Under High Normative Supervision

The quality of this sleeve is the result of a rigorous design, manufacturing and control process. The production of the fittings is carried out in strict compliance with international reference standards, in particular EN 10242 and ISO 49, which guarantee the uniformity and reliability of the part. The material selected is malleable cast iron EN-GJMB-350-10, as required by EN 1562. This cast iron is known for its optimal balance between strength and flexibility, allowing the fitting to withstand the stresses of intensive professional use.

Waterproof Guarantee and Long-Lasting Protection

One of the most important criteria for this type of fitting is its ability to guarantee waterproofing and its resistance to external elements.

• The sleeve has two cylindrical female threads (Rp), which meet ISO 7-1 (BSPT) standard. These threads are designed to screw firmly onto a tapered male thread (R), creating a compression junction essential for sealing. The loose nuts (for unions), if applicable, are also of the gas type according to ISO 228-1 (BSPP), ensuring system consistency.

• For optimal protection against oxidation and increased durability , each fitting has a black finish applied with a minimum thickness of at least 70μm (micrometers). This protective layer maintains the integrity of the malleable cast iron.

• To ensure excellence, each fitting is 100% tested for tightness before it is released to the market. This unit control eliminates any risk of failure during installation.

Practical Tips for Using the Sleeve

To achieve maximum performance and longevity from this sleeve, a few steps are crucial during installation:

• Preparation of the fillets: Make sure that both male ends to be connected are clean and that the threads are in good condition to ensure effective tightening.

• Sealant: Systematically apply a quality sealant (specific PTFE tape or gasket paste adapted to the fluid being transported) to the tapered male threads (R) that will be inserted into the sleeve.

• Precise Clamping: Screw the sleeve evenly and firmly on both sides, using appropriate tools. The tightening should be sufficient to ensure compression and tightness, but controlled so as not to damage the threads.

• Alignment: Ensure that the pipes are properly aligned before final tightening. Misalignment can introduce stresses that reduce the effectiveness of the seal.

• Decorative Use: If the sleeve is used for industrial furniture, its black finish can be kept as is for the raw look. A simple cleaning is usually enough.

Detailed technical specifications

The table below summarizes the technical specifications of this junction sleeve: